What type of sprinkler system has a looped system?

The correct answer is gridded system. A gridded sprinkler system is characterized by its configuration that creates a network of overlapping coverage areas, effectively ensuring that water is distributed uniformly across the protected area. This design allows for multiple piping routes, enhancing reliability and redundancy within the system. In the event of a blockage or failure in one part of the system, water can still be delivered through alternate paths, minimizing the risk of unprotected zones.

This configuration is particularly advantageous in larger spaces or complex layouts where consistent coverage is critical. It can help reduce the water pressure at the nozzles, allowing for finer control over the flow and coverage area, which is essential in fire suppression scenarios. The design also improves efficiency in water distribution and can accommodate fluctuations in flow demands.

Other sprinkler system configurations, while effective in various applications, do not possess the same characteristics of a looped or redundant network as found in a gridded system. This makes a gridded system the best choice for ensuring comprehensive fire protection in environments with varying demands and risks.